Question

If x is equal to 3 then find the value of 4 x power 3 minus 3 x to the power 2 + 5 x minus 6

Answer 1

Answer:

18

Step-by-step explanation:

$x=3\\4x^{3}-3x^{2} +5x-6\\=4(3^{3})-3(3^{2}) +5(3)-6\\=36 - 27 + 15 - 6\\=51- 33 =18$